Viewing archive of Tuesday, 4 August 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Aug 04 1230 UTC

SIDC Forecast

Solar flares

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
04 Aug 2015	110	008
05 Aug 2015	115	007
06 Aug 2015	120	006

Bulletin

Solar activity was very low with flaring restricted to B-class flares. All regions have a simple configuration (alpha or beta). NOAA active region 2396 showed some fast growth. A backsided filament eruption was followed by a slow, small CME with first measurement in LASCO-C2 at 13:25 UT. No Earth-directed CMEs were observed. Chances for strong flares remain low.

The solar wind speed has gradually decreased to 440 km/s. Geomagnetic conditions were mainly quiet and are expected to remain so.

Today's estimated international sunspot number (ISN): 082, based on 17 stations.

Solar indices for 03 Aug 2015

Wolf number Catania	///
10cm solar flux	106
AK Chambon La Forêt	011
AK Wingst	009
Estimated Ap	008
Estimated international sunspot number	052 - Based on 35 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

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